Answer:
Step-by-step explanation:
Answer:
This (x - 5) represents the length of the rectangle.
Step-by-step explanation:
The formula for the area of a rectangle of length L and width W is A = L * W.
Here, the width is x - 4 and the area is x^2 + x - 20. Dividing the width (x - 4) into the area results in an expression for the length:
x - 4 / x^2 + x - 20
Let's use synthetic division here. It's a little faster than long division.
If the divisor in long division is x - 4, we know immediately that the divisor in synthetic division is 4:
4 / 1 1 -20
4 20
--------------------
1 5 0
This synthetic division results in a remainder of 0. This tells us that 4 (or the corresponding (x - 4) is indeed a root of the polynomial x^2 + x - 20, and so *(x - 4) is a factor. From the coefficients 1 and 5 we can construct the other factor: (x - 5). This (x - 5) represents the length of the rectangle.
Answer:
Step-by-step explanation:
the coordinates of midpoint is average of x value of endpoints and average of y value of endpoints
Given:
3, -2
1, 2
-1, -4
-1, 2
The format is (x,y)
The domain is all the x-values while range is all the y-values.
domain: (3,1, -1,-1) 2nd option given.
Answer: 4.25
divide 4 on both sides, and it should leave you with x = 4.25
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